namespace WebBrowser
{
 public partial class MainForm : Form
 {
  public MainForm()
  {
  InitializeComponent();
  }
  int GetPixel(int x, int y)
  {
   Bitmap bmp = new Bitmap(1, 1, PixelFormat.Format32bppPArgb);
   Graphics grp = Graphics.FromImage(bmp);
   grp.CopyFromScreen(new Point(x,y), Point.Empty, new Size(1,1));
   grp.Save();
   return bmp.GetPixel(0, 0).ToArgb();
  }
  void Button1Click(object sender, EventArgs e)
  {
   int x = Cursor.Position.X;
   int y = Cursor.Position.Y;
   int pixel = GetPixel(x,y);
   textBox1.Text = pixel.ToString();
  }
  void MainFormLoad(object sender, EventArgs e)
  {
  webBrowser1.Navigate("http://google.com");
  }
  }
  }

 }

How i want to add a hotkey that call Button1 on Press? How can that be done?